B1A-WIRELESS DOOR & WINDOW OPEN ALARM ALERT [Electronics] [並行輸入品]

商品説明

Dimension of receiver: H 12.5cm x W 9cm x D 3.5cm Dimension of transmitter: H 8.5cm x W 6cm x 2 cm Dimension of contact: H 4cm x W 2cm x 0.5cm FEATURES Transmitter will detect garage door open and will send a wireless radio signal to trigger receiver that will activate the alarm Transmitter unit comes with 3V lithium battery(CR2032) included Receiver works with 3xC size batteries(not included) DC jack ? Can also be used with a 6V power adapter(?6.50) 6 melody receiver for optional and easily distinguish trigger sensor ? Power on/off switch Sound on/off switch ? External trigger input terminal compatible wired magnetic sensor for normal door Battery low indicator LED for transmitter and receiver Wireless RF transmission distance up to 40 meters. Trade Enquiries Welcome